A Survey of RF Energy Harvesting Circuits

Fumtchum, Achille; Tsafack, Pierre; Tanyi, Emmanuel; Huţu, Florin; Villemaud, Guillaume

doi:10.35940/ijitee.g8944.0510721

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…The authors in [9] show that Schottky SMS7630, HSMS2860 and HSMS2850 diodes are well suited for applications in the power range of -20 dBm to 10 dBm. As a consequence, this technology is chosen for the design of the proposed circuit.…”

Section: B Design Considerations Of the Rectifier Associationmentioning

confidence: 99%

Efficient Association of Low and High RF Power Rectifiers for Powering Ultra-Low Power Devices

Jesus

Hutu

Villemaud

et al. 2022

2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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Nowadays, the efficiency of Radio Frequency (RF) energy harvesting circuits is continuously increasing and, at the same time, the energy consumption of connected devices is drastically decreasing. Despite that, collecting, storing and delivering such kind of harvested energy to the device in an appropriate manner is still a challenge. This paper presents the design of a harvester able to efficiently collect energy from both low and high power levels of the RF field. The objective is to correctly power supply an ultra-low power consumption device requiring a regulated voltage. A RF harvester circuit, specially designed for our application and consisting in the association of a low and a high level power rectifier, is presented. By the means of a circulator and depending on the RF power level received at the input port of the RF harvester circuit, the RF power is absorbed by the low power rectifier or reflected to the high power rectifier. The rectifiers have their outputs associated in series. At a frequency of 868 MHz, the efficiencies of the association of rectifiers are 43 % and 76 % and were obtained for input powers of -20 dBm and 0 dBm respectively.

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Section: B Design Considerations Of the Rectifier Associationmentioning

confidence: 99%

Efficient Association of Low and High RF Power Rectifiers for Powering Ultra-Low Power Devices

Jesus

Hutu

Villemaud

et al. 2022

2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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“…The historical milestones and the breakthroughs on low-density energy harvesting are emphasised. In [9], the authors present the different possible topologies of an energy harvesting circuit. The efficiency of an energy harvesting circuit is the ratio between the power of the direct-current at its output and the power of the incoming RF signal.…”

mentioning

confidence: 99%

Impact of the Antenna Topology on the Combination of Full-Duplex Spatial Modulation and RF Energy Harvesting

Andriamanohisoa,

Hutu,

Villemaud

2024

2024 18th European Conference on Antennas and Propagation (EuCAP)

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In the context of full-duplex spatial modulation (FDSM) systems, this paper proposes a strategy that exploits the subset of antenna that is not used by the transmitter nor by the receiver to perform RF energy harvesting (RFEH). Through the mutual coupling effect, the transmitting antenna of each node transfers a part of its power to the other antennas of the array. Our idea is to recycle this power at this same node in complement to the ambient RF sources. Our study shows that the level of the available power may be greater than the RF ambient sources. The impact of the spacing d between the elements of an array of four antennas on the performance of the FDSM-RFEH was studied. For the RFEH aspect, when d is small, the harvested DC power level is greater. Contrary, for the FDSM aspect, when d is small, the level of the interference to noise ratio (INR) is greater, and the self-interference cancellation (SIC) is therefore impossible. The best compromise for the spacing is d = 0.6λ, where λ is the wavelength. By analysing the transfer coefficients extracted from S-parameters simulations performed on a four patch linear antenna array, the role of each antenna (emission, reception, RF energy harvesting) may be established.

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Radio Frequency Energy Harvesting Technologies: A Comprehensive Review on Designing, Methodologies, and Potential Applications

Ibrahim

Singh

Al‐Bawri

et al. 2022

Sensors

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Radio frequency energy harvesting (RF-EH) is a potential technology via the generation of electromagnetic waves. This advanced technology offers the supply of wireless power that is applicable for battery-free devices, which makes it a prospective alternative energy source for future applications. In addition to the dynamic energy recharging of wireless devices and a wide range of environmentally friendly energy source options, the emergence of the RF-EH technology is advantageous in facilitating various applications that require quality of service. This review highlights the abundant source of RF-EH from the surroundings sources, including nearby mobile phones, Wi-Fi, wireless local area network, broadcast television signal or DTS, and FM/AM radio signals. In contrast, the energy is captured by a receiving antenna and rectified into a working direct current voltage. This review also summarizes the power of RF-EH technology, which would provide a guideline for developing RF-EH units. The energy harvesting circuits depend on cutting-edge electrical technology to achieve significant efficiency, given that they are built to perform with considerably small current and voltage. Hence, the review includes a thorough analysis and discussion of various RF designs and their pros and cons. Finally, the latest applications of RF-EH are presented.

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A Survey of RF Energy Harvesting Circuits

Cited by 3 publications

References 25 publications

Efficient Association of Low and High RF Power Rectifiers for Powering Ultra-Low Power Devices

Efficient Association of Low and High RF Power Rectifiers for Powering Ultra-Low Power Devices

Impact of the Antenna Topology on the Combination of Full-Duplex Spatial Modulation and RF Energy Harvesting

Radio Frequency Energy Harvesting Technologies: A Comprehensive Review on Designing, Methodologies, and Potential Applications

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